Use the given degree of confidence and sample data to construct a confidence interval for the population mean u. assume that the population has a normal distribution. the amounts in ounces of juice in eight randomly selected bottles are:
15.9, 15.3, 15.2, 15.6, 15.1, 15.5, 15.7, 15.3
a. 15.84 oz< u < 15.06 oz
b. 15.74 oz< u < 15.16 oz
c. 15.06 oz< u < 15.84 oz
d. 15.16 oz< u < 15.74 oz